Description of numerical techniques with the aim of predicting the sheet metal blanking process by FEM simulation

Lemiale, Vincent; Chambert, Jérôme; Picart, Philippe

doi:10.1016/j.jmatprotec.2008.06.019

Cited by 31 publications

(12 citation statements)

References 22 publications

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“…The test specimens are square in shape (90 Â 90 mm 2 ) and are all taken from the same batch of material (thickness t = 3.55 mm). Table 1 summarizes the geometry of the punches used.…”

Section: Tooling and Operating Conditionsmentioning

confidence: 99%

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Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels

Achouri

Germain

Santo

et al. 2014

Materials & Design (1980-2015)

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. b s t r a c tSequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the ''evolution'' of these two characteristics in the different production steps. The punching process, which is usually in the beginning of the production chain, has an important impact on the stress, strain and damage states in the punched zones. It is essential that the influence of these mechanical fields be taken into account in the simulation of the forming sequence. In order to evaluate the evolution of each phenomenon, and in particular damage accumulation in the forming process, it is essential to characterize the punching process. The objective of this work is to understand and identify the physical damage mechanisms that occur during the punching operation and to establish relevant numerical models to predict the fracture location. The effect of the punch-die clearance on mechanical fields distribution is also discussed in this work.

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“…The test specimens are square in shape (90 Â 90 mm 2 ) and are all taken from the same batch of material (thickness t = 3.55 mm). Table 1 summarizes the geometry of the punches used.…”

Section: Tooling and Operating Conditionsmentioning

confidence: 99%

“…This function is assumed to be capable of indicating the damage level. Hambli and Potiron [1] and Lemiale et al [2] have published reviews of these criteria. Several criteria have been studied, including the Cockcroft-Latham criterion [3], the Rice and Tracey criterion [4] and the Oyane criterion [5].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels

Achouri

Germain

Santo

et al. 2014

Materials & Design (1980-2015)

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“…Some recent articles are [2][3][4][5]. The studied blanking process can be approximated with an axi-symmetric model.…”

Section: Fem Modelmentioning

confidence: 99%

Modelling of a burr-free blanking process

2009

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A two step burr-free blanking process is investigated, where the deformation due to the preceding deepdrawing process is taken into account. FEM simulations have been carried out using a nonlocal damage model to obtain mesh independent results. It is shown how the parameters of the damage model influence the failure in the blanking process. Furthermore the simulations are validated with the measured contour and hardness of the part in different stages of the process.

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“…The process of blanking can be described as the shearing of the workpiece (sheet metal) into the desired shape (blank), which is pressed on to the lower die by a blankholder and then perforated by the upper die (punch). The sheet metal part undergoes large elastoplastic deformations that lead to the development of damage and eventually complete fracture of the material [1].…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

Engin¹,

Eyerci̇oğlu²

2017

SV-JME

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Description of numerical techniques with the aim of predicting the sheet metal blanking process by FEM simulation

Cited by 31 publications

References 22 publications

Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels

Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels

Modelling of a burr-free blanking process

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

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